She kept gloating after winning the match, which was really annoying.

gloating 是动词 gloat 的现在分词形式。gloat 的意思是"幸灾乐祸地看"或"得意洋洋地炫耀"，常带有贬义，指以一种令人不快的态度表现自己的优越感或满足感。